256000460 has 24 divisors (see below), whose sum is σ = 543147360. Its totient is φ = 101343744.

The previous prime is 256000439. The next prime is 256000463. The reversal of 256000460 is 64000652.

It is not an unprimeable number, because it can be changed into a prime (256000463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64040 + ... + 67919.

It is an arithmetic number, because the mean of its divisors is an integer number (22631140).

Almost surely, 2^256000460 is an apocalyptic number.

256000460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256000460 is an abundant number, since it is smaller than the sum of its proper divisors (287146900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256000460 is a wasteful number, since it uses less digits than its factorization.

256000460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132065 (or 132063 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 256000460 is about 16000.0143749935. The cubic root of 256000460 is about 634.9608011019.

The spelling of 256000460 in words is "two hundred fifty-six million, four hundred sixty", and thus it is an aban number.